<template>
    <div class="app-container">
        <!--头部-->
        <myhead fixed title="小米商城">
            <router-link to="/" slot="left" v-show="flag">
                <mt-button icon="back" @click="goBack()">返回</mt-button>
            </router-link>
        </myhead>
        <!--中部-->
        <transition mode="out-in">
        <router-view></router-view>
        </transition>
        <!--底部-->
        <div>
            <nav class="mui-bar mui-bar-tab">
                <router-link class="mui-tab-lib" to="/home">
                    <span class="mui-icon mui-icon-home"></span>
                    <span class="mui-tab-label">首页</span>
                </router-link>
                <router-link class="mui-tab-lib" to="/vip">
                    <span class="mui-icon mui-icon-contact"></span>
                    <span class="mui-tab-label">会员</span>
                </router-link>
                <router-link class="mui-tab-lib" to="/shopcar">
                    <span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge">9</span></span>
                    <span class="mui-tab-label">购物车</span>
                </router-link>

                <router-link class="mui-tab-lib" to="/search">
                    <span class="mui-icon mui-icon-search"></span>
                    <span class="mui-tab-label">搜索</span>
                </router-link>
            </nav>
        </div>
    </div>
</template>

<script>
    export default {
        data(){
            return{
                flag:false,
            }
        },
        created(){
          this.flag=this.$route.path==="/home"?false:true;
        },
        methods:{
            goBack(){
                //后退
                this.$router.go(-1);
            }
        },
        watch:{
            '$route.path':function (newVal) {
                if(newVal==='/home')
                    this.flag=false;
                else
                    this.flag=true;
            }
        }

    }
</script>

<style scoped>
    *{
        margin: 0;
        padding: 0;
    }
  .app-container{
      padding-top: 40px;
      /*margin-top: 40px;*/
      overflow-x: hidden;
      padding-bottom: 50px;
  }
    .v-enter{
        opacity:0;
        transform: translateX(100%);
        /*position: absolute;*/
    }
    .v-leave-to{
        opacity: 0;
        transform: translateX(-100%);
        position: absolute;
    }
    .v-enter-active,
    .v-leave-active{
        transition: all 0.5s ease;
    }
    .mui-bar-tab .mui-tab-lib.mui-active{
        color: #007aff;
    }
    .mui-bar-tab .mui-tab-lib{
        display: table-cell;
        overflow: hidden;
        width: 1%;
        height: 50px;
        text-align: center;
        vertical-align: middle;
        white-space: nowrap;
        text-overflow: ellipsis;
        color:#929292;
    }
    .mui-bar-tab .mui-tab-lib .mui-icon{
        top: 3px;
        width: 24px;
        height: 24px;
        padding-top: 0;
        padding-bottom: 0;
    }

    .mui-bar-tab .mui-tab-lib .mui-icon~.mui-tab-label{
        font-size: 11px;
        display: block;
        overflow: hidden;
        text-overflow: ellipsis;
    }
</style>